About: http://webisa.webdatacommons.org/56308471

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	R1 is a divalent alkylene group comprised of 1 to 3 carbon atoms of straight or branched chain configuration including, for example, --CH2 --, --CH2 CH2 --, --CH2 CH2 CH2 --, --C(CH3)2 --, and --CH(CH3)CH2 --.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca